Method for determining an optimal schedule of an appliance

• US 9,686,093 B2
• Filed: 09/10/2013
• Issued: 06/20/2017
• Est. Priority Date: 09/10/2013
• Status: Active Grant

• Current Assignee: Whirlpool Corporation
• Original Assignee: Whirlpool Corporation
• Inventors: Ireland, Vincent A., Jakeway, Michael J., Oosterbaan, Aaron J.
• Primary Examiner(s): Lin, Jason
• Application Number:
  US14/022,575
• Publication Number:
  US 20150073612A1
• Time in Patent Office: 1,379 Days
• Field of Search: 700295, 700291
• CPC Class Codes: G05B 19/0426 Programming the control sequence
• CPC Class Codes: G05B 2219/25419 Scheduling
• CPC Class Codes: G05B 2219/2642 Domotique, domestic, home control, automation, smart house
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: H04L 12/2816 Controlling appliance services of a home automation network by calling their functionalities arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station; in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/00
• CPC Class Codes: H04L 12/2834 Switching of information between an external network and a home network access arrangements H04L12/2856
• CPC Class Codes: H04L 2012/285 Generic home appliances, e.g. refrigerators
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y04S 20/20 End-user application control systems
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A method of defining a message to be sent to at least one appliance regarding a schedule for performing a cycle of operation includes a step of acquiring pricing data from a source of information about a resource consumed by the appliance. A projected rate for the use of the resource by the appliance for a future series of time periods is calculated based upon a user preference. A projected schedule for performing the cycle of operation for a future series of time periods is created and then incorporated into the message that is transmitted to the appliance.

Claims

1. A method of defining a message to be sent to at least one appliance regarding a schedule for performing a cycle of operation, the method comprising:

acquiring pricing data from a source of information about a resource consumed by the appliance while performing the cycle of operation;

obtaining a user preference for a tradeoff factor where the tradeoff factor is indicative of at least one of a user'"'"'s desire to save money or a user'"'"'s reluctance to delay a cycle of operation for the appliance;

calculating at least one projected rate for the use of the resource by the appliance for a future series of time periods to define a series of projected rates;

assigning a delay request to selected time periods based on the tradeoff factor and the projected rate;

creating a projected schedule for performing the cycle of operation for the future series of time periods where the projected schedule incorporates the delay request assigned to the selected time periods;

incorporating the projected schedule into the message;

and transmitting to the appliance the message so that the appliance performs the cycle of operation based on the projected schedule;

wherein the tradeoff factor is used to determine a rate threshold above which the delay request is assigned and the rate threshold is a summation of I) an average of the series of projected rates and II) a product of the tradeoff factor and a standard deviation of the series of projected rates.

2. The method of claim 1 wherein the resource is one of electricity, water and natural gas.

3. The method of claim 1 wherein the resource is electricity and the pricing data is cents per kilowatt hour.

4. The method of claim 1 wherein the time periods are one hour each.

5. The method of claim 1 wherein the future series is a 24 hour period.

6. The method of claim 1 wherein the future series commences at a following midnight.

7. The method of claim 1 wherein the source of information is at least one of a smart meter, utility, utility rate aggregator, and an independent system operator.

8. The method of claim 1 wherein the message is to be sent to more than one appliance and the projected schedule includes an offset.

9. A method of scheduling a cycle of operation in an appliance comprising:

obtaining from a user of the appliance a tradeoff factor between 0 and 1 based on a user'"'"'s preference for a level of participation in management of a resource;

determining an optimal schedule for performing a cycle of operation in the appliance wherein the schedule is a function of the tradeoff factor wherein the tradeoff factor is used to determine a rate threshold above which a delay request is included in the optimal schedule, and the rate threshold is a summation of I) an average of a series of projected rates for the use of the resource by the appliance for a future series of time periods and II) a product of the tradeoff factor and a standard deviation of the series of projected rates; and

performing the cycle of operation in the appliance based on the determined optimal schedule.

10. The method of claim 9 wherein the level of participation is selectable by a user on a sliding scale.

11. The method of claim 9 wherein one of a plurality of predetermined levels of participation are selectable.

12. The method of claim 9 wherein the resource is one of electricity, water and natural gas.

13. The method of claim 9 wherein the resource is electricity.

14. A remote device configured to communicate with at least one appliance regarding a schedule for performing a cycle of operation and to communicate with a source of information about a resource consumed by the appliance while performing the cycle of operation, wherein the remote device comprises at least one server configured to:

acquire pricing data from the source of information;

obtain a user preference for a tradeoff factor where the tradeoff factor is indicative of a user'"'"'s preference for a level of participation in management of a resource;

calculate at least one projected rate for the use of the resource by the appliance for a future series of time periods to define a series of projected rates;

assign a delay request to selected time periods based on the tradeoff factor and the projected rate;

create a projected schedule for performing the cycle of operation for the future series of time periods;

incorporate the projected schedule into a message; and

transmit the message to the appliance so that the appliance performs the cycle of operation based on the projected schedule;

wherein the tradeoff factor is used to determine a rate threshold above which the delay request is included in the projected schedule and the rate threshold is a summation of I) an average of the series of projected rates and II) a product of the tradeoff factor and a standard deviation of the series of projected rates.

15. A non-transitory computer readable storage medium for defining a message to be sent to at least one appliance regarding a schedule for performing a cycle of operation, the non-transitory computer readable storage medium comprising instructions for a server to:

acquire pricing data from a source of information;

obtain a tradeoff factor where the tradeoff factor is indicative of a user'"'"'s preference for a level of participation in management of a resource;

calculate at least one projected rate for the use of the resource by the appliance for a future series of time periods to define a series of projected rates;

assign a delay request to selected time periods based on the tradeoff factor and the projected rate;

create a projected schedule for performing the cycle of operation for the future series of time periods;

incorporate the projected schedule into a message; and

transmit the message to the appliance so that the appliance performs the cycle of operation based on the projected schedule;

wherein the tradeoff factor is used to determine a rate threshold above which the delay request is included in the projected schedule and the rate threshold is a summation of I) an average of the series of projected rates and II) a product of the tradeoff factor and a standard deviation of the series of protected rates.

16. A method of defining a message to be sent to at least one appliance regarding a schedule for performing a cycle of operation, the method comprising:

acquiring pricing data from a source of information about a resource consumed by the appliance while performing the cycle of operation;

obtaining a user preference for a tradeoff factor associated with the use of the resource by the appliance;

calculating at least one projected rate for the use of the resource by the appliance for a future series of time periods to define a series of projected rates;

assigning a delay request to selected time periods based on the factor and the projected rate;

creating a projected schedule for performing the cycle of operation for the future series of time periods;

incorporating the projected schedule into the message; and

transmitting to the appliance the message so that the appliance performs the cycle of operation based on the projected schedule;

wherein the tradeoff factor is used to determine a rate threshold above which the delay request is included in the projected schedule and the rate threshold is a summation of I) an average of the series of projected rates and II) a product of the tradeoff factor and a standard deviation of the pricing data.

17. The method of claim 16 the resource is electricity, the pricing data is cents per kilowatt hour and the delay request is assigned to time periods where the projected rate exceeds the rate threshold.